Based on this product's specifications, here are some alternatives and similar models
Rechargeable button cell battery Voltcraft LIR 2477 3.6 V 180 mAh
Summary description:
Rechargeable button cell battery Voltcraft LIR 2477 with nominal voltage 3.6 V and capacity 180 mAh. Designed for compact electronics that require a small, rechargeable power source — such as watches, calculators, memory backup modules, sensors and small portable devices. Provides stable voltage and repeated charge cycles; suitable where space is limited and a replaceable rechargeable cell is needed.